It ain't the first ABS system I've gravity bled, won't be the last. The later, more sophisticated electronic systems in the really late models probably can't be bled like this. From what I've read it requires a scanner to evacuate the air from the ABS and lines. I'll probably never own one of those though. Since GM did away with Pontiac, I'm committed to only driving Pontiacs til I quit driving, or I die, so the newest car I'll ever own is a 2010, last year for Pontiac.
When I met my wife she owned a 1999 chrysler stratus and I also had to replace a rear flex hose on it. I has ABS, and I gravity bled that also.
The doubters can't believe you can bleed even old cars with gravity bleeding, ya gotta have 2 people, a vacuum pump, or a pressure bleeder. The laws of physics never change and a siphon still works today same as it did ever since they've been putting fluid inside of pipes, it will seek the lowest point, and air will always rise to the top of a fluid column.
Just wanted to keep the record straight, it works on everything I've worked on so far, up to, and including my wife's 2008 Vibe, which is in the 310,000 mile range on the odometer. The Vibes quit registering at 299,000 miles. My stepsons girl friends Vibe also quit registering miles just before it hit 300.000 miles, must be a Vibe thing........